Sliding guides
Guides for moving components in machinery.
Engineering plastics · Custom parts
CNC machining
of PET.
Dimensional stability for parts that guide and slide. We manufacture machined PET components for bushings, rollers, and packaging machinery.
Get your quoteQuote in 24 h · Engineering review
- From
- 1 unit
- Delivery from
- 8 working days
- Material
- PET Engineering plastic
01 / Why choose this material
Properties and uses
of PET.
Semi-crystalline and opaque PET for CNC machining, offering good dimensional stability and wear resistance. It is used in guiding elements and mechanical parts.
PET, polyethylene terephthalate, is offered here as semi-crystalline and opaque for CNC machining. Its low moisture absorption and wear resistance make it suitable for guiding elements. It is not the transparent presentation used in many packaging containers.
Learn about the CNC machining process ↗PET Properties
Mechanical reference · Proto&Go! material datasheet
- Indicative density
- 1,38 g/cm³
- Tensile strength at yield
- 88 MPa
- Tensile modulus
- 2,7 GPa
- Absorption · 23 °C / 50 % HR
- 0,25 %
- Presentation
- Semi-finished for CNC
This datasheet corresponds to machinable PET. Amorphous PET for packaging and other transparent products is a different presentation. Check chemical compatibility and hot water compatibility. The added values are references from the published PDF; the supply grade and test results may vary.
Material datasheets
- Opaque in the machinable presentation
- Good wear resistance
- Low moisture absorption
- Electrical insulator
PET Applications
Bushings
Bushings with defined wear and fit requirements.
Rollers
Rollers for product transport and positioning.
Packaging machine parts
Packaging equipment parts with compatible contact agents.
02 / A choice based on usage
Choose PET
according to your part.
These criteria help define the material, geometry, and working conditions before manufacturing.
01
Dimensional stability
Low moisture absorption facilitates maintaining fits, without eliminating thermal expansion or load deformation.
02
Sliding
For bushings and guides, check load, speed, lubrication, and contact material.
03
Cleaning and temperature
Confirm compatibility with cleaning products, hot water, and steam before choosing the grade.
The part's function is the starting point.
Indicate loads, temperature, environment, and appearance needed. If the drawing requires a specific grade, include it in the request.
03 / Finishing also counts
Finishes and appearance
of PET.
Material and process define the surface. These are the key factors for specifying your part's appearance.
Machining finish
The part retains machining marks. Indicate adjustment surfaces and visible faces on the drawing.
Geometry and surfaces
For functional surfaces, define roughness and tolerances in the drawing. Feasibility is reviewed based on grade and geometry.
Your part requirements
Include the expected appearance and usage conditions in your request to confirm the quote.
04 / From design to quote
CNC machining
of PET.
Milling and turning allow manufacturing PET parts from a block, plate, or bar. The tool removes material to obtain faces, cavities, drilled holes, and contours according to the design.
Send a 3D model per part in STEP or a native supported format: SLDPRT, X_T, X_B, IPT, CATPART, PRT, SAT, or 3DM. Attach a PDF drawing for threads, inserts, or specific tolerances. STL is accepted only for 3D printing.
Upload your file and request a quotePart tolerances
For dimensions without a specific tolerance, Proto&Go! applies ISO 2768-m. With a drawing, equivalent tolerances to IT11 can be assessed, depending on the geometry and requested dimensions. Attach the drawing and mark the functional surfaces.
Calculate a tolerance ↗Quantity and cost per part
In CNC, setup costs are distributed across the batch units. The final reduction depends on machining time and material.
Quote in 24 hours
Parts from 8 working days after confirming the order. The quote specifies the lead time based on geometry, material, finish, and quantity.
How much it costs to manufacture
The price of your part
in PET.
The price to machine PET depends on the geometry, the grade, the tolerances, the finish, and the quantity. It includes material, preparation, and machining.
Check the catalog example to compare materials. To know the cost of your design, request a quote with your 3D file.
Frequently asked questions
Before manufacturing
in PET.
Properties, applications, and manufacturing: answers to prepare your request.
What is PET and what properties does it have?
Semicrystalline and opaque PET for machining, with good dimensional stability and wear resistance. It is used in guiding elements and mechanical parts. This datasheet corresponds to machinable PET. Amorphous PET for packaging and other transparent products is a different presentation. Check chemical compatibility and hot water compatibility. The added values are references from the published PDF; the supply grade and test may vary.
What parts can be manufactured in PET?
We can manufacture sliding guides, bushings, rollers, and packaging machinery parts. CNC machining allows adapting the geometry to your 3D file. Define the loads, the environment, and the finish so we can review the application.
Is machined PET transparent?
No. The PET in the catalog for machining is semicrystalline and opaque. The transparent presentations used in packaging are different. If you need a machined transparent part, you can compare polycarbonate and PMMA with the appropriate finish.
PET or PA6 for a part with tight tolerances?
PET absorbs less moisture than PA6, which helps dimensional stability. Still, temperature, load, and geometry affect the dimensions. The choice should also consider the toughness and wear the mechanism needs.
Can machined PET be used in food machinery?
PET is used in guiding elements and packaging machinery. If the part will be in contact with food, you must confirm the grade and the corresponding documentation. Also indicate cleaning conditions, especially if they include hot water or steam.
How much does it cost to machine a PET part?
The price to machine PET depends on the geometry, the grade, the tolerances, the finish, and the quantity. It includes material, preparation, and machining. Upload the 3D file to the Proto&Go! platform to receive a quote with cost and lead time.
What tolerances can I request for a PET part?
For dimensions without a specific tolerance, Proto&Go! applies ISO 2768-m. With a drawing, equivalent tolerances to IT11 can be assessed, depending on the geometry and requested dimensions. Attach the drawing and mark the functional surfaces.
What file do I need to manufacture a PET part?
Send a 3D model per part in STEP or a native supported format: SLDPRT, X_T, X_B, IPT, CATPART, PRT, SAT, or 3DM. Attach a PDF drawing for threads, inserts, or specific tolerances. STL is accepted only for 3D printing.
Compare before choosing
Other options for your part.
Your next part
Shape it
in PET.
Upload the 3D file. We review feasibility and send you the quote.